Clean external/ folder.

Former-commit-id: c80df363b7018b25e73c1c339516d9ba7cdca816

.gitattributes

@@ -0,0 +1,20 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.tex text
+*.bib text
+*.svg text
+*.py text
+*.vbs text
+*.cpp text
+*.hpp text
+Makefile text
+
+# Declare files that will always have CRLF line endings on checkout.
+*.sln text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.jpg binary

.gitignore

@@ -18,24 +18,7 @@ examples/*/*.rbr
 example_static
 example_header_only
 example1
-external/yimg/.git*
-external/tinyxml2/CMakeFiles*
-external/tinyxml2/CMakeCache.txt
-external/tinyxml2/cmake_install.cmake
-external/tinyxml2/Makefile
-external/embree/build/*
-external/embree/bin/*
-external/embree/bin
-external/embree/doc/html/*
-external/embree/doc/latex/*
-external/gmp
-external/cgal
-external/cork
-external/mpfr
-external/boost
-external/.cache
-external/build
-external/pybind11
+/external
 .DS_Store
 libigl.zip
 *tags

cmake/LibiglDownloadExternal.cmake

@@ -68,6 +68,14 @@ function(igl_download_embree)
 	)
 endfunction()
 
+## glad
+function(igl_download_glad)
+	igl_download_project(glad
+		GIT_REPOSITORY https://github.com/libigl/libigl-glad.git
+		GIT_TAG        71e35fe685a0cc160068a2f2f971c40b82d14af0
+	)
+endfunction()
+
 ## GLFW
 function(igl_download_glfw)
 	igl_download_project(glfw
@@ -78,13 +86,14 @@ endfunction()
 
 ## ImGui
 function(igl_download_imgui)
-	download_project(
-		PROJ           imgui
-		SOURCE_DIR     ${LIBIGL_EXTERNAL}/imgui/imgui
-		DOWNLOAD_DIR   ${LIBIGL_EXTERNAL}/.cache/${name}
+	igl_download_project(imgui
 		GIT_REPOSITORY https://github.com/ocornut/imgui.git
 		GIT_TAG        bc6ac8b2aee0614debd940e45bc9cd0d9b355c86
 	)
+	igl_download_project(libigl-imgui
+		GIT_REPOSITORY https://github.com/libigl/libigl-imgui.git
+		GIT_TAG        a37e6e59e72fb07bd787dc7e90f72b9e1928dae7
+	)
 endfunction()
 
 ## pybind11
@@ -95,6 +104,14 @@ function(igl_download_pybind11)
 	)
 endfunction()
 
+## stb_image
+function(igl_download_stb)
+	igl_download_project(stb
+		GIT_REPOSITORY https://github.com/libigl/libigl-stb.git
+		GIT_TAG        e671ceb3def5e7029a23de14c55dc16301ad4dab
+	)
+endfunction()
+
 ## TetGen
 function(igl_download_tetgen)
 	igl_download_project(tetgen
@@ -119,7 +136,6 @@ function(igl_download_triangle)
 	)
 endfunction()
 
-
 ## Google test
 function(igl_download_googletest)
 	igl_download_project(googletest
@@ -128,8 +144,6 @@ function(igl_download_googletest)
 	)
 endfunction()
 
-
-
 ################################################################################
 
 

cmake/libigl.cmake

@@ -324,6 +324,7 @@ if(LIBIGL_WITH_OPENGL)
 
   # glad module
   if(NOT TARGET glad)
+    igl_download_glad()
     add_subdirectory(${LIBIGL_EXTERNAL}/glad glad)
   endif()
   target_link_libraries(igl_opengl ${IGL_SCOPE} glad)
@@ -355,7 +356,7 @@ if(LIBIGL_WITH_OPENGL_GLFW_IMGUI)
     compile_igl_module("opengl/glfw/imgui")
     if(NOT TARGET imgui)
       igl_download_imgui()
-      add_subdirectory(${LIBIGL_EXTERNAL}/imgui imgui)
+      add_subdirectory(${LIBIGL_EXTERNAL}/libigl-imgui imgui)
     endif()
     target_link_libraries(igl_opengl_glfw_imgui ${IGL_SCOPE} igl_opengl_glfw imgui)
   endif()
@@ -367,9 +368,9 @@ if(LIBIGL_WITH_PNG)
   # png/ module is anomalous because it also depends on opengl it really should
   # be moved into the opengl/ directory and namespace ...
   if(TARGET igl_opengl)
-    set(STB_IMAGE_DIR "${LIBIGL_EXTERNAL}/stb_image")
     if(NOT TARGET stb_image)
-      add_subdirectory("${STB_IMAGE_DIR}" "stb_image")
+      igl_download_stb()
+      add_subdirectory(${LIBIGL_EXTERNAL}/stb stb_image)
     endif()
     compile_igl_module("png" "")
     target_link_libraries(igl_png ${IGL_SCOPE} igl_stb_image igl_opengl)

include/igl/cat.cpp

@@ -1,9 +1,9 @@
 // This file is part of libigl, a simple c++ geometry processing library.
-// 
+//
 // Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
-// 
-// This Source Code Form is subject to the terms of the Mozilla Public License 
-// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+//
+// This Source Code Form is subject to the terms of the Mozilla Public License
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can
 // obtain one at http://mozilla.org/MPL/2.0/.
 #include "cat.h"
 
@@ -14,14 +14,14 @@
 #include <unsupported/Eigen/SparseExtra>
 
 
-// Sparse matrices need to be handled carefully. Because C++ does not 
+// Sparse matrices need to be handled carefully. Because C++ does not
 // Template:
 //   Scalar  sparse matrix scalar type, e.g. double
 template <typename Scalar>
 IGL_INLINE void igl::cat(
-    const int dim, 
-    const Eigen::SparseMatrix<Scalar> & A, 
-    const Eigen::SparseMatrix<Scalar> & B, 
+    const int dim,
+    const Eigen::SparseMatrix<Scalar> & A,
+    const Eigen::SparseMatrix<Scalar> & B,
     Eigen::SparseMatrix<Scalar> & C)
 {
 
@@ -108,13 +108,13 @@ IGL_INLINE void igl::cat(
 
   }
 
-  C = SparseMatrix<Scalar>( 
+  C = SparseMatrix<Scalar>(
       dim == 1 ? A.rows()+B.rows() : A.rows(),
       dim == 1 ? A.cols()          : A.cols()+B.cols());
   C.reserve(A.nonZeros() + B.nonZeros());
   C.setFromTriplets(CIJV.begin(),CIJV.end());
 #else
-  C = SparseMatrix<Scalar>( 
+  C = SparseMatrix<Scalar>(
       dim == 1 ? A.rows()+B.rows() : A.rows(),
       dim == 1 ? A.cols()          : A.cols()+B.cols());
   Eigen::VectorXi per_col = Eigen::VectorXi::Zero(C.cols());
@@ -189,7 +189,7 @@ IGL_INLINE void igl::cat(
 template <typename Derived, class MatC>
 IGL_INLINE void igl::cat(
   const int dim,
-  const Eigen::MatrixBase<Derived> & A, 
+  const Eigen::MatrixBase<Derived> & A,
   const Eigen::MatrixBase<Derived> & B,
   MatC & C)
 {
@@ -264,4 +264,5 @@ template Eigen::Matrix<int, -1, 1, 0, -1, 1> igl::cat<Eigen::Matrix<int, -1, 1,
 template Eigen::Matrix<double, -1, 1, 0, -1, 1> igl::cat<Eigen::Matrix<double, -1, 1, 0, -1, 1> >(int, Eigen::Matrix<double, -1, 1, 0, -1, 1> const&, Eigen::Matrix<double, -1, 1, 0, -1, 1> const&);
 template void igl::cat<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1> >(int, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::Matrix<double, -1, -1, 0, -1, -1>&);
 template void igl::cat<Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(int, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::Matrix<int, -1, -1, 0, -1, -1>&);
+template void igl::cat<Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(int, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::Matrix<int, -1, 1, 0, -1, 1>&);
 #endif